Flutter dart regular regexp matches non printing characters \cl\cj\cm\ck

No Problem That's all right.

Dart Pad Online tools An error is reported when using , Emergencies ️

nhooo tool dart There are ways , Hey

\r Match one Carriage return or Control+M , Equivalent to \cM and x0d

\f Match page breaks , Equivalent to \x0c and \cL

\n Match newline , Equivalent to \x0a and \cJ

\s Matches any whitespace characters

Including Spaces 、 tabs 、 Page breaks and so on , Equivalent to [ \f\n\r\t\v].

\S uppercase S Match any non whitespace characters

Matches any non-whitespace characters ( barring \f、\n、\r、\t、\v)

The string contains non white space characters

\t Match the match

\t You can represent spaces when making tables , Equivalent to \x09

\v Match vertical tabs

summary

Match by x Control characters indicated .
Page identifier \f = \x0c = \cL
A newline \n = \x0a = \cJ
A carriage return \r = \x0d = \cM
Include any white space characters ( Also include \f、\n、\r、\t、\v) \s
Matches any non-whitespace characters \S The size of S
Match the match \t \x09
Match vertical tabs \v = \x0b = \cK